Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX850-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 850mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S
The AirTAC SAIJ100X850-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position without adding external stops. It features a 100 mm bore and an 850 mm nominal stroke that can be dialed back by up to 30 mm, providing a usable travel window of 820-850 mm.
This variant incorporates a -S magnet for position sensing and uses a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE electronic solid-state switches. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×850 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S Is Used
Product Changeover
Quickly adjust the 820-850 mm travel window during packaging line format changes to accommodate different carton sizes without replacing hardware.
Machine Setup Tuning
Fine-tune the retract end-position during initial commissioning to dial in exact pressing or forming distances on heavy machinery.
Variable End Stops
Dial back the stroke by up to 30 mm to adapt a fixed automation sequence to new fixture heights or varying material thicknesses.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S the Right Cylinder?
An adjustable stroke is ideal for machine setups requiring variable end-stops during commissioning or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. The PT tapered port thread matches the standard G1/2 porting for this bore size.
Because the 850 mm stroke is long, an external guide is recommended to prevent excessive side-loading on the 25 mm rod. Remember that the rear adjuster acts only as a travel stop and the air cushions only decelerate the load; neither holds the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder, or use an external rod lock.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-30S FAQ
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke by up to 30 mm. This gives the 850 mm nominal stroke a usable travel window of 820-850 mm, which can be fine-tuned during setup without changing the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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